Attachment for miner&#39;s carbide lamps



Sept. 5, 1933. w. B. AKQERS 1,925,620

ATTACHMENT FOR MINERS CARBIDE LAMPS Filed Dec; 24, 1931 Patented Sept. 1933 ATTACHMENT FOR MINER/S CARBIDE LAMPS Wiley B. Akers, San Jauncito, Honduras Application December 24, 1931 Serial No. 583,083

5 Claims.

My invention relates to certain new and useful improvements in miners carbide lamps of the general type disclosed in Letters Patent #1,673,- 930, and it primarily has for its object to provide 5 means to prevent the burner-from clogging up.

In lamps of this general type it has been found that the burner frequently clogs due to the presence of carbide ash or other detritus which makes y it necessary to carry a needle or wire to punch out and clean the burner. If the needle or wire becomes lost the miner is without his light in the event that the burner clogs up, and this frequently happens. It is in order to overcome this objectionable feature that I have provided my invention.

Further, my invention has for its object to provide a convenient attachment for the lamp which remains on as a part of the lampand it can be instantly utilized to scrub or clean the duct from the gas chamber to the burner, including the port between that duct and the burner.

A further objectof the invention. is to provide such an attachment that will not onlyserve as a scrubber or cleaner to clean the port to the burner but will also function as a filter to. in a large measure keep the solid material from being carried by the gas to the port of the burner.

Other objects will in part bexobvious andin part be pointed out hereinafter.

To the attainment of the aforesaid objects and ends, my invention consists in the novel features of construction, combination and arrangement of parts hereinafter more fully described, then pointed out in the appended claims and illustrated in the accompanying drawing, in which:

Figure 1 is a vertical longitudinal section of one embodiment of the invention.

Figure 2 is a similar view of another embodiment of the same.

Eigure 3 is an enlarged detail view of the scrubber or cleaner and filter which constitute a part of my invention. I

Figure 4 is a modification of the same. In the drawing, in which like numerals of reference indicate like parts in all the figures, 1 represents the base of the lamp which encloses the combined carbide and gas chamber. The base 1 has a threaded neck 2 which screws into the threaded skirt 10 of the upper part of the burner,

there being a washer 4 interposed between the surfaces 3 and 9 of the body to effect a gastightseal.

5 designates the upper part of the body which encloses the water chamber and is separated from the gas chamber by a partition 6 from which a An enlargement 2 1 of the duct may pass through the water chamber and has its outer end inter- 'nally threaded as at 25 to receive: the screwplug tube '7 projects down into the gas chamber to pass the water to the carbide, the passage being cons trolled by a valve 11 engaging the seat 8 of the pipe '7, the valve 11 being operated by the rod 12 on the screw plug 13, which screws into a threaded opening in the top of the lamp body, and is provided with a milled head 14 for operating purposes.

The body of the lamp has a fillingopening 15 to the water chamber whichis normally closed by a suitable plug cap 16;

The miners lamps of the type referred to include a reflector and a burner tip 18, also a hook 1.9 and a handle 20.

All of the foregoing parts are of the usual construction and per se, constitute no part of the present invention,

In lamps of this type there is a short duct passing through the water chamber, one end of which has a port through the partition 6 in communication with the gas chamber and the other end has a part in communication with the burner 18. It is with this duct that my invention deals;

Before discussing in. detail my invention it is well to call attention to the fact that the gas port from the gas chamber to the duct mentioned is covered with: a felt disk 32 held in'p'lace by a suitable device 33 mounted on the pipe or tube '7.

In' carrying out my invention I connect the vport 24 in the partition 6- with the port of the burner 18 by a duct having. an enlargement 21 from which the short duct section 22 passes to the burner tip, the port to the burner being indicated at 23.

26 which carries the combined filter and cleaning means, the plug 26 having a milled head 27 by means of which it may be screwed and unscrewed to rotate the combined cleaner and filter unit 28-29 or pull it entirely out of the enlargement 21 when desired. The combined cleaner and filter unit may consist of a stiff bristle brush made of twisted wire 28 and bristles 29 of any suitable material or it may consist of a rod 28a covered with felt 29a, regulation filter cloth, cocoanut mat or any suitable porous substance. In the embodiment using the felt covering 29a the rod is indicated by 28a, the screw plug by 26a and the milled head by 27a.

In the embodiment shown in Figure 2 the partition is indicated by 6a, the port in the partition by 24a, the duct by 30, the duct passage by 31 and the enlargement by 21a. The port to the burner tip is indicated by 23a.

In using the lamp with my attachment the parts are positioned as shown in Figures 1 and 2. If the burner shows any indication of clogging all that is necessary is to unscrew the plug 26 or 26a, as the case may be, which causes rotation of the combined scrubber or cleaner or filter and remove any detritus that may be clogging the entrance to the port 23 or may be clogging the port 24, Usually a slight turn of the head 27 or 27a, as the case may be, is sufficient to clear the burner duct. However, if there be a considerable accumulation of detritus the same can be almost entirely removed by unscrewing the plug 26 and pulling out the cleaning element 28, 29, or 28a, 29a, as the case may be.

In the embodiment shown in Figure 1, the enlargement of the duct is located within the water chamber whereas in the embodiment shown in Figure 2 it is located outside of the same. The advantage of having it located outside is that the combined cleaner and filter may be inserted from the bottom upwardly, and in this embodiment gravity assists in keeping the solid detritus from the port 23 and also assists in the removal of the ash when the plug 26 is unscrewed and the element 28-29 withdrawn.

Other modifications in the details of construction, design and arrangement of parts may be made without departing from the spirit of the invention and the scope of the appended claims.

What I claim is:

1. In carbide gas generators, a body enclosing a gas and carbide chamber, and a water chamber separated therefrom by a partition having a valve passage for the water, a burner mounted on the outside of said body, a duct passing through the water chamber and having ports connecting it to the gas chamber and to the burner, said duct including an enlargement having an open end, a plug for closing said open end, and means carried by the plug to lie within said enlargement to overlie said ports and for cleaning said ports of clogging detritus.

2. In carbide gas generators, a body enclosing a gas and carbide chamber and a water chamber separated therefrom by a partition having 'a valve passage for the water, a burner mounted on the outside of said body, a duct passing through the water chamber and having ports connecting it to the gas chamber and to the burner, said duct including an enlargement having an open end, a plug for closing said open end, and means carried by the plug to lie within said enlargement to overlie said ports and for cleaning said ports of clogging detritus and filtering the gas as it passes through the duct, said means comprising a twisted wire rod carrying radially disposed bristles, the ends of which engage the wall of the enlargement.

3. In carbide lamps, a body having a gas generating chamber, a burner tip and a duct leading gas from the generating chamber to the tip, said duct including an enlarged tubular portion having intermediate its ends and in its side wall a port which communicates with the burner tip, said enlarged tubular portion having an open end, and a combined gas filter and duct cleaner located in and contacting the inner wall surface of said tacting portion of said cleaner which overlies said port being such that the act of inserting said plug causes the clearing of said port.

4. In carbide lamps, a body having a gas generating chamber, a burner tip and a duct leading gas from the generating chamber to the tip, said duct including an enlarged tubular portion having intermediate its ends and in its side wall a port which communicates with the burner tip, said enlarged tubular portion having an open end, and a combined gas filter and duct cleaner located in and contacting the inner wall surface of said enlarged tubular portion and'overlying said port and having a plug removably secured in and closing said open end, said enlarged tubular portion having a second port in its side wall through which the gas from said gas generating chamber passes and over which port said combined gas filter and duct cleaner projects, the area of the cleaner surface in contact with said inner surface being such that upon the commencement of rotation of said cleaner the ports will be cleared.

5. In carbide lamps wherein is provided a body having a gas generating chamber, a burner tip and a duct leading gas from the gas generator chamber to the 'tip, the combination therewith of an enlargement of the duct, said enlargement having a restricted inlet port communicating with the generator chamber and a restricted outlet port communicating with the burner tip, and a comtary and longitudinal motion to said combined filter and cleaner to clear said ports.

WILEY B. AKERs. 

